IWA World Water Congress 2006

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IWA World Water Congress 2006

• 10-14 Sep. 2006. Beijing.

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Membrane systems for wastewater treatment
membrane fouling

• Investigation of dissolved oxygen effect on
  biofilm structure and membrane permeability in
  submerged membrane bioreactor
• Yu-Lan Jin, Chung-Hak Lee

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Membrane systems for wastewater treatment
membrane fouling

• Characterization of fouled membranes from a
  membrane enhanced biological phosphorus removal
  system
• Z. Geng and E. R. Hall

• Analytical tools
• SEM Scanning electron microscopy
• COM Conventional optical microscopy
• EDX Energy dispersive X-ray microanalysis
• MALDI_MASS Matrix assisted laser desorption/
• ionization-mass
  spectrometry

• Most extractable foulants
• Carbohydrates humic or humic-like
  substances carbon dominant

• After fouling, the contact angle increase

More hydrophobic
Accelerating the fouling process
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Membrane systems for wastewater treatment
membrane fouling

• Effect of membrane fouling reducer on membrane
  filtration characteristics in MBR process
• Woo-Nyoung Lee, Chung-Hak Lee

• Local distribution of membrane

porosity
?Pmax
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Drinking water treatment membrane filtration

• Fouling analysis of ultrafiltration and
  nanofiltration membrane Peter M Huck

Biofiltration as a pretreatment high efficiency
of fouling material removal

• Influence of pretreatment on AMWD of dissolved
  organics in the secondary effluent and membrane
  structure parameter model analysis for UF
  Xudong Wang

Coagulation for large MW / Ozon - PAC for
small MW

• Quantifying inorganic fouling in a membrane
  bioreactor treating nitrate-contaminated
  groundwater using hydrogen as an energy source
  Babak Rezania

pH inorganic precipitation clogging
neutralization of the solution Foulant material
beta three calcium phosphate ß